Germicidal light then kills the microorganisms. Waves of solution in the device create a whirlpool effect to remove debris from the lens surface. Prices range from about $30 for the Clensatron system to $90 for Lens Comfort, which comes with a three-month supply of multipurpose cleaning solution.Ī different type of system called PuriLens combines subsonic cleaning and UV-C light. Products go by the names Clensatron, LenSoClean, Lens Comfort, Lens Medic, and Quick Care. The process - known as cavitation - causes oils, dirt, and deeply bound protein to fall off the lens. Here's how they work: When high frequency ultrasonic waves pass through the cleaning solution, microscopic bubbles form, expand, then collapse within the liquid. They can be used with all types of contact lenses: hard, soft, gas permeable, and disposable. The new devices - approved in 1999 by the FDA - use either ultrasonic or subsonic waves to clean protein buildup, oils, pollen, and dust from lenses, eliminating the need for handling by the wearer. However, the American Optometric Association suspects a good portion of users don't clean them properly and may develop serious eye diseases as a result, such as corneal ulcers. With some 32 million Americans wearing contact lenses for vision correction today, they're often viewed as a commodity, not a medical device. And that's important, because unclean contacts carry high risks. There are new devices on the market - using ultrasonic waves - that claim to do a better job than many contact lens wearers can do by hand. Even with the all-in-one cleaners that are popular today, some people feel that cleaning lenses is still a difficult task and may not keep an eye on how well they do it.īut don't fret, there may be good news. 8, 2000 - If you have been wearing contact lenses for a while, you probably remember the cumbersome task that cleaning the lenses used to be with the heat disinfection units and the multiple cleaning solutions.
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